Bobbin support



L. B. HASBROUCK BOBBIN SUPPORT Filed Jan. 12, 1928 Sept. 1, 1931,.

n 5 mm M N s R 2 M m w 8 7 1a A F 5 3 M 0 0 J 3 mm 2 2 ||l WMWW TilllWlfll H 2 v. u a f [fl w g a I I I hhl mum W (41v patenieafsepr. 1 931 V TUNITEDY Louis is. nnsimeuomox OF ELHIEVA, "Y Y Application Hedi Vanuatu seriallo. 246,129.

This invention relates to bobbin supports and aims to provide an improved means for I mounting roving bobbins on the creels-ofi spinning frames and the like. V A specific object of the invention is to improve thebobbin-engagin member ofabob-i in support of the'types own jin U. S. Pat- .ent No. 1,692,441, issued November 20, 1928, to my assignee, Eclipse'Textilei Devices', Inez, so asto make theuse of Y this bobbin support more convenientand top "for'supportin bobbins of ditlerent'iiite i I be understood, Iwilldescr I,

embodiment thereof, w hichj sjjshow accompanying drawings, inwhich: I

Fig. 1 is a transversesectio' a'l elevationof the upper part of a spinning frame of usualv construction, showing the creel provided with 26 bobbin supports embodying the invention;

Fig. 2 is an axial'section ofoneof the bob bin supports shown in Fi 1, 'showing in vertical section a part of t ecreel,board' and df'part of a bobbin mounted on a" support; and,

Fig. 3 is a side elevation of the be port with its dust ,cap and nut removed-f;

The bobbin supportfillustrated'. includes fixed supporting inember'lO andarotarybobbin-engaging member 12 connected byajsingle bearing 11. The fi'xedand rotar :parts 10 and 12 are provided with opposed; 'aring" surfaces 13, 14 which serve as racesfor bear-1 ing balls l5 interposed between them. One

of the bearing surfaces, most desirably the;

fixed surface 13,: is spherically curved,zwith its center of curvature at a point 16, located substantially on theaxis of'ai'bobbin Bear ried by the rotary part 12 andmaterially above the middle of this bobbin. .,-The other 1 bearing surface, 14, has the form of an nary ball race.

In these particulars, the bobbin support il-- lustrated corres ends to that of Patent No.1 1,692,441 hereto ore mentioned but'thezbobbin-engagin member differs from that shown in sai patent and embodies important improvements. The wooden bobbins ordinarily used on spinning frames contain a central bore Bl'having an elarged portion at one end of the bobbin where an external col-v diameterjat the other end ofthe bobbinr; The

n ooinromrronor nnw YORK ilar'is p v fi f d-a meanest redfi'c f skewer mounting-heretoforecustomarily used; on I'spin'ning [frames holds a bobbin with; the smallv end ofSits 'bore' uppermost while the bobbin-engaging. member of the bobbin holder of said Patent-No.1,692A41 holdsabobbin in the opposite position- ;EThepresent invention includes meansf f-hol'ding: the bobbin with the s'mall end o V, bore uppermost This is' an important-practicaladvantage,

. v since. it avoidsithenecessity of changing the habits of the spinnin frame operative. vThis and oth'erifatures .o' the invention may best f be understood-from a detailed description of the ."constiructfion' Qotthe -;port illustratedf j ecific bobbin sup- The'fixedi"mn'1ber l fi of' the support includes abolt-QO having a head 21 at its lower end and a nut 22 at its upperend. The bolt 7o mayelxtend througha creel board C with its nut against the upper surface of the board andlits lower end and head projecting below the lower surface thereof. On the bolt are i'm'ounteda dust cap 23.and sleeve 25, and a bea'ring member 26 providing the spherical bearing surface '13; 1 As appears in Fig. 2, the dust cap 23 and sleeve 25 are locked in posit'ion'b'etwe'en the head 21 of: the bolt and the creelboard20 byitightening the nut 22,-while fthe bearingjmember 26" surrounds and rests on the head 21, and is'heldfirmly in position by the engagementlofthe'resilient sleeve 25 with "itsiup'per edge.

, l e-rotary member 12 has an. elongated body which, in the form illustrated, =consist s ofan upper sleeve 30 and a lower sleeve 31 of ASSIG OR To'EcLIrsn TEXTILE ewers; 5 V

less diameter. vT'he-upperslee've 30 has'its v iu'pper edge "turned in to provide the curved lip'32 which provides'the bearing surface or race 14. The upper end of the lower sleeve 31' is secured to the lower end of the upper slightly greater than that of this reduced portion. Diametrically opposite slots 34 are provided in the sleeve 31 near its lower end. Through these project outwardly curved portions 85 of the U-shaped gripping spring 36 located within the sleeve 31.

In order to center bobbins whose bores differ somewhat in diameter, the sleeve 31 is provided with an external collar 37 having a conical or tapered outer surface. This collar may be fixedon-the sleeve 31 near its upper end in the position shown in Fig. 2, but is more desirably loose'so-that it may slide on the sleeve. The parts 35"of the spring 36 prevent it from slipping ofl the sleeve as shown in Fig. 3. When the sleeve 31 is inserted in the reduced portion B2 of the bore of the bobbin, the upper end of this portion of the bore engages the conical surface of the collar 37 and is thereby centered with respect to the sleeve. The extent to which thesleeve may enter the bobbin is limited by the engagement of the bobbin with the collar 37 and the engagement of this collar with an annular projection 88 at, or near, the upper end of the sleeve 31-. The sleeve then extends into the bobbin to such a distance that the outwardly curved portions 35 of the spring {36 engage the tapered portion B3 of the bobbin lar against the projection 38' so that the bobbin is held centrally and firmly-on the rotary member 12.

It should be noted that the bobbin support which has been described may be manufactured at small cost due to the small number of parts of which it is composed, and

the fact that all these parts, except those which are standard machine parts, may easily be made as stampings and assembled by spinning. The use of bobbin supports as described is illpstrated in. Fig. 1, which shows the creel ends of the bobbins and the creel board below them' to facilitate cleaning the upper surfaces of the creel boards to remove the fly which tends to collect-on them.

Removal of thebobbins from the supports and replacement of the bobbins thereon is acmember comprising an elongated body adaptcomplished easily and quickly. To remove a bobbin, it is necessary only to pull it downward to free its upperxe'nd from the spring grips 35 and the sleeve 31 of, its support. A bobbin is replacedbypushing its upper end up around the sleeve 31 until the collar 37 engages the shoulder 38. In this operation. the whole rotary member 12 is moved upward to some extent, but its movement is limited by engagement with thedust cap. or with the creel board if no dust capis used, so that the bobbin may readily be pushed upon it.

Owing to the tree tipping of the rotary members 12, it is possible to change the bobbin on a support in the inner row of the creel without removing any of the bobbins in the outer row. This is accomplished merely by tipping two of the bobbins in the outer row sufliciently to permit the passing of another bobbin between them.

What I claim is:

1. The combination of a bobbin containing a central bore having parts of different diameters connected by a tapering portion, and a member comprising an elongated body adapted to enter the smaller portion of the bore of the bobbin, an expanding spring grip on said body adapted to engage the tapering portion of the bore of the bobbin to urge the bobbin to movelongitudinally of said member, and a frusto-conical projection on said body engaging the edge ofthe smaller portion of the bore in the bobbin and arresting such movement of the bobbin.

2. The combination of a bobbin containing a central bore having parts of different diameters'connected b'y'a tapering portionyand' a memberacompri'sing an elongated body adapted to enter the smaller portion of the bore of the bobbin,"a'n expanding-spring gripon said body adapted to engagethe tapering 1 portion of the bore-'of'thebobbin .to urge the bobbin tomove longitudinallyofsaid mern I her, and a'pro'jeetionon the bodyengagingl 5100 one end of the bobbin and arresting such movement of the bobbin.

3. In a bobbin support, abobbin-engagin'g member comprising an elongated body adapts ed to extend into the bore of a'bobbin, a frusto-c'onical projection on said body,cand means on said body urging the bobbin endwise to holl one end of the bore of the bobbin against sai body.

4. In a bobbin support,"a membereomprising an elongated body adaptprojection to cen-terthe bobbin on said ed to extendiinto the bore 'ot a bobbin, 0.

frusto-conical projection on; said body,1{'and resilient means on said body separated from said projection by a distance less thanthe an intermediate part ofa bobbi'n and tourge one end of the bore oflthe" bobbin" against edto enter into the bore of a bobbin, a stop 1'15 length of the bobbin and adapted to engage projecting near one end. of said body, resil1-,

ent gripping means extending trom said body near its other end, and a collar slidably mounted on said body between said'stop and said grips and adapted to engage one end oi the bobbin into whiclfsaid body is ex. tended.

6. in a bobbin support, a bobbin-engaging member comprising an elon ated body adapted to enter into the bore 0 -a bobbin, a stop projecting near one end of said body, resilient gripping means extendin from said body near its other end, and a usto-conical collar slidabl mounted on said body between said stop and said grips with its smaller end turned toward said grips.

7. In a bobbin support, a bobbin-engaging member comprising an elongated body ada ted to extend into the bore of a bobbin, resilig I out gripping means carried by said body, and

a collar removably mounted on said body and adapted to engage one end of the bobbin into which said body is inserted.

8. In a bobbin support, a bobbin-engaging member comprising an elongated body ada ted to extend into the bore of a bobbin, resilient gripping means carried by said body, and a frusto-conical collar removably mounted on said body with its smaller end spaced from and directed towards said gripping means.

9. A bobbin support, comprising a fixed supporting member and a hollow rotary bobbin-engaging member open at its lower end, a ball bearing connecting the fixed and rotary members and located in the upper portion of said hollow rotary member, a horizontal partition in said hollow rotary member below the bearing to prevent dirt from entering the bearing, and a gripping spring located in said hollow rotary member below said partition and removable through the open lower end of said member.

10. In a bobbin support, :1 depending bobbin-enga ing member comprising an elongated body adapted to extend into the upper end of the bore of a bobbin, :1 centering projection on said body, and resilient means for urging a bobbin upwardly to hold its upper end against said centering means.

In testimony whereof I have hereunto set 'i my hand. 1

LOUIS B. HASBROUCK. 

